While some hate steam and others love it, you should try it out before refusing to play a game you like.
I have tried it. I never liked it, but even that sentiment seems positive after I bought Supreme Commander 2 on release day at retail. I got it at a brick and mortar GameStop store and without knowing it had Steamworks integration. I looked it over before I left the store and there was no mention of Valve or Steam/Steamworks on any of the packaging and the case was still sealed. I made it home and opened it to find a Steam Serial Key insert and, having opened it, it was too late to return the copy to GameStop. I played it for a while, even multiplayer with a few friends who bought it as well, and saw no advantages over any other system. If anything, I saw a disadvantage from day one, in that the game refused to install from the disc. It's been too long to remember for sure now, but there must have been a day one patch, as I had to download the entirety of the game's data from Steam's servers. The advertisements whenever I closed the game didn't help (and led to a lot of unlogged game time when I found I could skip the ads by ending the Steam process tree when I was done playing Supreme Commander 2). Steam is no longer on my computer in any form and will not be again.
I don't begrudge developers for choosing to use Steamworks in their games. I just would like some warning, as I won't buy them knowing they do. Picking at random from the Wheel of Reasons, one of my larger issues is that Steam offers a few token conveniences at the expense of our rights as consumers, and no one seems to care. I have no issue with Steam, the store, but Steamworks is a DRM scheme first and a community system second. Publishers understand this and that it is popular with gamers. Developers and publishers both understand it is trusted to protect them from piracy. Did the industry learn nothing from The Witcher 2? Even today, a game can sell in obscene numbers--granted, mostly on Steam--and succeed without DRM (except for Steam, if you bought it on Steam), that it could have leaderboards, too.
Regardless, their decisions are just business. My decision in seeking a refund and my decision to refuse to play the likes of Left4Dead, Portal, Half-Life, Skyrim, or any other game I learn is a Steamworks title is business as well. My business just has different priorities.